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[23.128.96.18]) by mx.google.com with ESMTP id q25si1790836eja.500.2020.04.23.11.28.32; Thu, 23 Apr 2020 11:28:55 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730224AbgDWSXY (ORCPT + 99 others); Thu, 23 Apr 2020 14:23:24 -0400 Received: from relmlor1.renesas.com ([210.160.252.171]:43095 "EHLO relmlie5.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1730074AbgDWSXY (ORCPT ); Thu, 23 Apr 2020 14:23:24 -0400 X-IronPort-AV: E=Sophos;i="5.73,307,1583161200"; d="scan'208";a="45545132" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 24 Apr 2020 03:23:22 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 70DB240C7B9A; Fri, 24 Apr 2020 03:23:17 +0900 (JST) From: Lad Prabhakar To: Yoshihiro Shimoda , Kishon Vijay Abraham I , Lorenzo Pieralisi , Bjorn Helgaas , Rob Herring , Andrew Murray , Tom Joseph , Jingoo Han , Gustavo Pimentel , Marek Vasut , Shawn Lin , Heiko Stuebner Cc: Geert Uytterhoeven , linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Lad Prabhakar , Lad Prabhakar Subject: [PATCH v9 0/8] Add endpoint driver for R-Car PCIe controller Date: Thu, 23 Apr 2020 19:22:31 +0100 Message-Id: <1587666159-6035-1-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi All, This patch series adds support for endpoint driver for R-Car PCIe controller on R-Car/RZ-G2x SoC's, this also extends the epf framework to handle multiple windows supported by the controller for mapping PCI address locally. Note: The cadence/rockchip/designware endpoint drivers are build tested only. Changes for v9 (Re-spun this series as there were minimal changes requested): * Rebased patches on top of v5.7.rc1 * Replaced mdelay(1) with usleep_range(1000, 1001) in rcar_pcie_ep_assert_intx() * Added a check for max_functions read from DT to restrict with RCAR_EPC_MAX_FUNCTIONS * Replaced MSICAP0_MMENUM with MSICAP0_MMESE * Retry ioremap for other windows on failure in pci_epc_mem_alloc_addr() * Fixed looping for number windows in pci_epc_mem_exit() * Set maximum to 1 for max-functions in DT binding (I have restored the acks from Rob and Shimoda-san) * Sorted the entry in MAINTAINERS Changes for v8: * Dropped adding R8A774C0 (0x002d) pci-id in pci_ids.h * Fixed typo in commit message for patch 2/8 * Reworded commit message for patch 5/8 as suggested by Bjorn * Split up patch to add pci_epc_mem_init() interface to add page_size argument as suggested by Bjorn. Changes for v7: * Fixed review comments pointed by Shimoda-san 1] Made DT bindings dual licensed, added Shimoda-san as maintainer and fixed the example as its built with #{address,size}-cells = <1>. I have still restored the Ack from Rob and Shimoda-san with these changes. 2] Split up the patches so that they can be picked up by respective subsystem patches 1/4-9/11 are now part of this series. 3] Dropped altering a comment in pci-epc.h 4] Used a local variable align_size in pci_epc_mem_alloc_addr() so that size variable doesn't get overwritten in the loop. 5] Replaced i-=1 with i-- 6] Replaced rcar with R-Car in patch subject and description. 7] Set MACCTLR in init() callback Changes for v6: 1] Rebased patches on endpoint branch of https://git.kernel.org/pub/ scm/linux/kernel/git/lpieralisi/pci.git/ 2] Fixed review comments from Shimoda-san a] Made sure defconfig changes were in separate patch b] Created rcar_pcie_host/rcar_pcie_ep structures c] Added pci-id for R8A774C0 d] Added entry in MAINTAINERS for dt-binding e] Dropped unnecessary braces 3] Added support for msi. Changes for v5: 1] Rebased patches on next branch of https://git.kernel.org/pub/scm/ linux/kernel/git/helgaas/pci.git 2] Fixed review comments reported by Kishon while fetching the matching window in function pci_epc_get_matching_window() 3] Fixed review comments reported by Bjorn a] Split patch up first patch so that its easier to review and incremental b] Fixed typos 4] Included Reviewed tag from Rob for the dt-binding patch 5] Fixed issue reported by Nathan for assigning variable to itself Changes for v4: 1] Fixed dtb_check error reported by Rob 2] Fixed review comments reported by Kishon a] Dropped pci_epc_find_best_fit_window() b] Fixed initializing mem ptr in __pci_epc_mem_init() c] Dropped map_size from pci_epc_mem_window structure Changes for v3: 1] Fixed review comments from Bjorn and Kishon. 3] Converted to DT schema Changes for v2: 1] Fixed review comments from Biju for dt-bindings to include an example for a tested platform. 2] Fixed review comments from Kishon to extend the features of outbound regions in epf framework. 3] Added support to parse outbound-ranges in OF. Lad Prabhakar (8): PCI: rcar: Rename pcie-rcar.c to pcie-rcar-host.c PCI: rcar: Move shareable code to a common file PCI: rcar: Fix calculating mask for PCIEPAMR register PCI: endpoint: Pass page size as argument to pci_epc_mem_init() PCI: endpoint: Add support to handle multiple base for mapping outbound memory dt-bindings: PCI: rcar: Add bindings for R-Car PCIe endpoint controller PCI: rcar: Add endpoint mode support MAINTAINERS: Add file patterns for rcar PCI device tree bindings .../devicetree/bindings/pci/rcar-pci-ep.yaml | 77 ++ MAINTAINERS | 1 + drivers/pci/controller/Kconfig | 18 + drivers/pci/controller/Makefile | 3 +- .../pci/controller/cadence/pcie-cadence-ep.c | 2 +- .../pci/controller/dwc/pcie-designware-ep.c | 16 +- drivers/pci/controller/pcie-rcar-ep.c | 557 ++++++++ drivers/pci/controller/pcie-rcar-host.c | 1065 +++++++++++++++ drivers/pci/controller/pcie-rcar.c | 1206 +---------------- drivers/pci/controller/pcie-rcar.h | 140 ++ drivers/pci/controller/pcie-rockchip-ep.c | 2 +- drivers/pci/endpoint/pci-epc-mem.c | 204 ++- include/linux/pci-epc.h | 38 +- 13 files changed, 2078 insertions(+), 1251 deletions(-) create mode 100644 Documentation/devicetree/bindings/pci/rcar-pci-ep.yaml create mode 100644 drivers/pci/controller/pcie-rcar-ep.c create mode 100644 drivers/pci/controller/pcie-rcar-host.c create mode 100644 drivers/pci/controller/pcie-rcar.h -- 2.17.1